I've recently started to fill in my eyebrows every now and then and I've found that I've started to become a perfectionist when I do. The hairs on my eyebrows are not very well behaved so I've come up with this tip myself. I heard that spraying hairspray onto your brows helps them to stay in place (that is its job after all) however I found that you couldn't get good accuracy when I did that, in thatended up spraying hairspray directly into my eye. To help with this I spray the hairspray onto a mascara wand thingamajig then use that to help sort out my brows.
If you also have any beauty tips then I'd love to hear them!